10550821907 has 2 divisors, whose sum is σ = 10550821908. Its totient is φ = 10550821906.

The previous prime is 10550821889. The next prime is 10550821933. The reversal of 10550821907 is 70912805501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10550821907 - 2⁸ = 10550821651 is a prime.

It is a super-2 number, since 2×10550821907² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10550821997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275410953 + 5275410954.

It is an arithmetic number, because the mean of its divisors is an integer number (5275410954).

Almost surely, 2^10550821907 is an apocalyptic number.

10550821907 is a deficient number, since it is larger than the sum of its proper divisors (1).

10550821907 is an equidigital number, since it uses as much as digits as its factorization.

10550821907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 38.

The spelling of 10550821907 in words is "ten billion, five hundred fifty million, eight hundred twenty-one thousand, nine hundred seven".